Spring gun



w, F, sci-1mm SPRING GUN Jun 28, 1927. 1,633,795

Filed June 4, 1921 zvvzzvron M Z A TTORNEY- Patented June 28, 1927.

UNITED STATES PATENT OFFICE-.5

WILLIAM F. SCHMIDT, OF W'YANDOTTE, MICHIGAN, ASSIGrNOR TO THE ALL-METAL PRODUCTS COMPANY, OF WYANDO'ITE, MICHIGAN, A CORPORATION OF MICHIGAN.

SPRING GUN.

Application'filed June 4,

My invention relates to spring guns and an object of my ni'iprovements is to 'cheapen,

facilitate and perfect the construction thereof.

In the acconrpanyung drawings;

Figure 1 is a side elevation of a gun embodying my invention in the normal position of the parts.

Fig. 2 .is a side elevation of the same, partly cut away and broken" showing the parts in the position that they take in retracting the spring.

Fig. 3 is a sectional side elevation illustrating the detailed construction of the same.

Fig. 4i is a section on the line i"l of Fig. looking in the direction of the arrow.

Fig. a perspective view of the rear end of the barrel.

a is a stock and 7) the barrel of the spring gun, is a tamping fitting over the rear of the bo el Z1 and providing a trigger guard and lugs for the hinging of the stock to the barrel.

a is a metal finishing piece fitted and secured to the stock.

(L0 is a pin engaging the lugs c of the stai'nping c' and the sheet metal finishing piece (I? thus pivoting the stock to the barrel. 0" is a detent pressed inward from the metal of each of the lugs 0 a? is a cavity pressed inward from each side of the metal finishing piece a to correspond to the detent a in the lug 0*; ,VYhen the stock is turned to its operative position, as shown in Fig. l, the detent 0 engages in the cavities a? and holds the stock and barrel in such normal relative position. The barrel 6 is made of sheet iron formed into proper shape and having a small lug 7) (Fig. bent inward therefrom, the metal being cut through upon three sides to form the lug.

(Z is the trigger piece having a retaining hook (Z (Z is a pivot pin passing through a corresponding cavity in the trigger piece d and adapted to movelongitudinally therein. (Z (Z indicate the endsof the spring operating the trigger piece (Z. The end (Z is bent around as shown in Fig. 4 and engages an edge of the trigger piece. The end (7* extends upward and backward and engages against the bore of the barrel 7) to tension the spring.

f is a spring. form, the rear This is of the usual helical spire of which engages the 1921. Serial 475,093.

lug b to hold the spring in position. 6 is a wire or red extending axially through the spring f and provided with a'piston,or cross head 6 at its forward end which engages against the forward end of the spring The rod 0 extends backward, bends downward to form the loop 0 andthenupward and again downward to form the engaging lug 6 The lug 0 extends through aslot in the lower wall at the rear portion of the barrel Z) within the enclosing stamping .c. When the spring f is extended it forces the wire 6 forward until the loop 6 engages against the edge Z) of the slot in the barrel b. p

x is a wire loop pivoted at its adjacent ends to the finishing piece a at a point above the pivot ac and having its loop engaging over the loop 6 of the rod 6 to act as a retracting means for said rod.

The rear end of the barrel 1) is formed as shownin Fig. 5 and is provided with'an aperture Z) upon one side to receive one end of the trigger pivot pin 0Z Upon the other side of the barrel is a slot 72 extending horizontally inward from the rear end of the. barrel and then extending downward as shown at b to form a bearing for the other end of the pin.

The method of putting the trigger piece (Z in position is as follows: The pin (Z is forced along the aperture in the trigger piecelongitudinally to the left as shown, having reference to the positions of the Figures 4 and 5, until its right hand end will pass into the bore of the barrel. The part of the pin (Z at the left of the trigger piece will pass in to and along the slot 6 and then downward into the bearing 6 Said pin is then pressed longitudinally toward the right until its right hand end engages in the aperture b. In this position the spring is stressed by the engagement of its end d with the wall of the barrel. I

The stamping c is bent outward as indicated at 0 to pass over the ends of the pin d to hold said pin in position.

The operation of the above described apparatus is as follows:

The parts being adjusted to position, the stock is broken downward as shown in Figures 2 and 3 thus drawing the wire rod 0 backwards by means of the looped wire m tensioning the spring 7 and engaging the lug e over the retaining book 03 of the trigger piece. The parts are then returned to the position of Fig. 1 and when the trigger is pulled the lug 6 is released and the spring f projects the wire 6 forward until the loop forming the lug e engages against the forward end 5 of the slot in the barrel thus arresting the motion of the wire 6. When the stock is bent upward to its operative position, the detent 0 engages in the cavities a and helps hold the parts in their adjusted position.

Claims:

1. In an apparatus of the kind described, a barrel, a helical spring in said barrel and a lug struck out of the material of which said barrel is made and bent inward to engage and retain said spring in position.

2. In an apparatus of the vkind described,

a barrel having a slot 6 b in its rear wall and an aperture 6 aspring piece having a pivot pin adapted to slide therein and to engage in said slot and aperture for the purpose described.

3. In an apparatus of the kind described, a barrel having a slot 6 b in its rear wall and an aperture 6*, a spring piece having a pivot pin adapted to slide therein and to engage in said slot and aperture a spring (Z d engaging said trigger piece and adapted to be tensioned when said trigger. piece is placed in position substantially as and for the purpose described.

In testimony whereof, I sign this specification.

WILLIAM F. SCHMIDT. 

